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IJSTR >> Volume 4 - Issue 1, January 2015 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

A Method To Modify/Correct The Performance Of Amplifiers

[Full Text]



Rohith Krishnan R, S. Krishnakumar, Reza Hashemian



Index Terms: Amplifiers, amplifier modification, amplifier re-design, biasing design, op-amp Fixators.



Abstract: The actual response of the amplifier may vary with the replacement of some aged or damaged components and this method is to compensate that problem. Here we use op-amp Fixator as the design tool. The tool helps us to isolate the selected circuit component from rest of the circuit, adjust its operating point to correct the performance deviations and to modify the circuit without changing other parts of the circuit. A method to modify/correct the performance of amplifiers by properly redesign the circuit is presented in this paper.



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[2] R. Hashemian, “Local biasing and the use of nullator-norator pairs in analog circuits designs,” VLSI Design vol. 2010, pp. 19–30, 2010., 10.1155/2010/297083 [Online]. Available: http://www.hindawi.com/journals/vlsi/2010/297083.html

[3] Rohith Krishnan R, S Krishnakumar, “Practical Biasing Design for Analog Circuits”,IJERT,ISSN: 2278-0181, Vol. 3 Issue 7, July – 2014.

[4] R. Hashemian, “Partial Local Biasing, a New Method to Modify/Tune Amplifiers for a Desirable Performance”, IEEE International Conference on Electro/Information Technology, IIT, Chicago, 2007.

[5] Reza Hashemian, “Application of Fixators-Norator Pairs in Designing Active Loads and Current Mirrors in Analog Integrated Circuits”, IEEE Transactions On Very Large Scale Integration (VLSI) Systems, Vol. 20, No. 12, December 2012.

[6] D.Roy Choudhury and Shail B. Jain, “Linear Integrated Circuits”,3rd edition, New Age International Publishers, chapter2,3 and 4.

[7] E. Tlelo-Cuautle, “Advances in Analog Circuits”, 1st ed. India: InTech,2011, ch. 2, 3.